Home | Round Flat Washers - Precision Stamped in Any Material

Round Flat Washers - Precision Stamped in Any Material

Round flat washers are fundamental components in fastener assemblies, providing load distribution, surface protection, and vibration resistance across virtually every industry. Superior Washer & Gasket Corp manufactures round flat washers in a comprehensive range of materials-including aluminum, brass, copper, stainless steel, carbon steel, nylon, PTFE, and specialty alloys-in standard and custom sizes to precise tolerances.

As an ISO 9001:2015 certified flat washer manufacturer, we maintain one of the largest inventories of round flat washers available from a domestic source. Whether you need standard washers by the thousand or special flat washers produced to your custom specifications, our washer manufacturing capabilities deliver fast, reliable solutions made in the U.S.A.

  • Round flat washers in metals, plastics, and specialty materials
  • Broad standard size inventory for fast delivery
  • Custom flat washers stamped to your specifications
  • ISO 9001:2015 certified quality management
  • Made in the U.S.A. with material certifications available
SKU ID OD Thickness Material ID TOL OD TOL Quantity

815-349-062

ID 0.532
OD 0.719
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-35-063

ID 0.133
OD 0.599
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-350-062

ID 0.41
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-350-128

ID 1.062
OD 2.5
Thickness 0.128
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-359-062

ID 0.125
OD 0.688
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-36-035

ID 0.139
OD 0.406
Thickness 0.035
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-360-010

ID 0.127
OD 0.715
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-361-065

ID 0.413
OD 0.741
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-362-020

ID 0.234
OD 0.315
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-363-061

ID 0.395
OD 0.553
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-364-062

ID 0.38
OD 0.594
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-365-062

ID 0.45
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-366-080

ID 0.419
OD 0.78
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-367-093

ID 0.512
OD 0.944
Thickness 0.093
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-368-025

ID 0.223
OD 0.329
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-369-080

ID 0.528
OD 0.701
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-37-032

ID 0.142
OD 0.281
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-370-063

ID 0.38
OD 0.613
Thickness 0.063
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-371-094

ID 0.563
OD 0.783
Thickness 0.094
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-372-061

ID 0.556
OD 0.786
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-373-062

ID 0.633
OD 1.203
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-374-062

ID 0.501
OD 0.735
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-375-092

ID 0.56
OD 0.812
Thickness 0.092
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-376-020

ID 0.0
OD 0.813
Thickness 0.02
Material Copper
ID TOL
OD TOL +-.005
Quantity

815-377-058

ID 0.636
OD 0.874
Thickness 0.058
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-378-062

ID 0.752
OD 1.018
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-379-025

ID 0.189
OD 0.373
Thickness 0.025
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-38-020

ID 0.145
OD 0.253
Thickness 0.02
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-380-036

ID 0.197
OD 0.36
Thickness 0.036
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-381-089

ID 0.502
OD 0.746
Thickness 0.089
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-382-062

ID 0.516
OD 0.747
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-383-032

ID 0.643
OD 0.748
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-384-079

ID 0.641
OD 0.81
Thickness 0.079
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-385-125

ID 0.685
OD 0.937
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-386-125

ID 1.003
OD 1.498
Thickness 0.125
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-387-091

ID 0.491
OD 0.694
Thickness 0.091
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-388-062

ID 1.372
OD 1.626
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-389-062

ID 0.469
OD 0.748
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-39-032

ID 0.147
OD 0.25
Thickness 0.032
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-390-051

ID 0.451
OD 0.749
Thickness 0.051
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-391-031

ID 0.497
OD 0.814
Thickness 0.031
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-392-062

ID 1.063
OD 1.562
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-393-061

ID 0.39
OD 0.563
Thickness 0.061
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-394-080

ID 0.313
OD 1.272
Thickness 0.08
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-395-062

ID 0.162
OD 0.374
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-396-062

ID 0.173
OD 0.376
Thickness 0.062
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-397-050

ID 0.305
OD 0.432
Thickness 0.05
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-398-065

ID 0.338
OD 0.75
Thickness 0.065
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-399-087

ID 0.5
OD 0.754
Thickness 0.087
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

815-40-010

ID 0.148
OD 0.25
Thickness 0.01
Material Copper
ID TOL +-.005
OD TOL +-.005
Quantity

Meeting Your Manufacturing, Material, And Quality Requirements

Numerous factors affect the quality and long-term performance of flat washers. As a U.S.-based manufacturer and an ISO 9001:2015 certified company, we assure you that all parts we ship are manufactured domestically. We offer metal washers made from a diverse range of materials, including conventional options like copper stampings, aluminum washers, and stainless steel washers (which can include passivation). We also specialize in plastic washers and exotic materials like Inconel, Nylatron washers, and Monel. Additionally, we can quote a variety of platings including zinc, cad yellow, and black ox to suit your specific needs.